1996г. №4

THE STEFS OF THE SUB-QUATERNARY RELIEF IN LITHUANIA AND THE ADJACENT TERRITORY. A. Sliaupa, Geological Institute of Lithuania, Vilnius

The relief of the sub-Quaternary surface is of stepped character. The steps are dissected by incisions, and the formers represente actually a system of elevations characterized by nearly equal top altitudes. Steps of different topography are bounded by more or less distinct slopes. The slopes are of structure-denudational and denudational nature. Steps and slopes were dated back to Paleogene -Pleistocene time.

THE GLUCKSTADT-GRABEN — A PERMOTRIASSIC RIFT INVERTED DURING CRETACEOUS AND TERTIARY*. F. Kockel, Federal Geological Survey of Germany, Hannover

Rifting continued in Zechstein times and increased in the Lower Triassic (Buntsandstein) when >3000 m of Lower and Middle Buntsandstein were deposited in the centre of the graben. The graben widened in Middle Triassic times and again during the Upper Triassic, precisely in the Middle Keuper. The Keuper rifting can be precisely dated as Lower Gypsum Keuper and Gypsum Keuper. Movements at the faults often changed their direction of throw, not only the faults parallel to the rift axis but also those intersecting the rift in NW-SE-direction. The thickness maps of the Lower Keuper, the Lower Gipskeuper, the Upper Gip-skeuper, the Steinmergelkeuper and the Rhaetian clearly show this development as well as the extension of the central graben in longitudinal direction. The main diapire movements and the formation of the conspicuous salt walls also took place in Midlle Keuper times. The diapirs straddle the limiting faults in the basement.

ПАЛИНОЛОГИЧЕСКИЕ ИССЛЕДОВАНИЯ КУЛЬТУРНЫХ СЛОЕВ НЕОЛИТИЧЕСКИХ ПОСЕЛЕНИЙ БАССЕЙНА р.ИПУТЬ. Г.И. Симакова, Институт геологических наук АН Беларуси, Минск

Палинологическим методом были изучены отложения 2 неолитических поселений — Федоткина Грива и Мишурова Грива. Поселение Федоткина Грива находится в 2,6 км к западу от д.Дубовый Лог Добрушского района, а поселение Мишурова Грива — в 2,5 км к югу от этого населенного пункта.

 

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